i also was curious about using actual spring water,as this is what chunyi says to use. i have been taking this water mixture for a few months. i use boiled water with filtered water from tap not knowing if this is correct or not. in level 2 chunyi mentions again about yin yang water but says boiled water with regular water, so i don't see why your water wouldn't suffice. unless someone out there really knows more about this. also i use a hot shot water dispenser made by sunbeem which boils water in a few seconds. good luck
